value quality siderealorsynodic author ref method 8.5380 2 Synodic Waszczak 2015AJ....150...75W Lightcurve 8.5700 3- Synodic Stephens 2015MPBu...42...70S Lightcurve 8.5716 3 Synodic Behrend LCDB Lightcurve 8.5723 2 Sidereal Martikainen 2021A&A...649A..98M Model 8.5723 2 Sidereal Hanus 2016A&A...586A.108H Model 8.5723 2 Sidereal Durech 2016A&A...587A..48D Model 8.5723 2 Sidereal Durech 2023A&A...675A..24D Model 8.5847 2 Synodic Pal 2020ApJS..247...26P Lightcurve 8.6000 2+ Synodic Behrend LCDB Lightcurve